Over the years, simple blood tests have been developed to detect specific types of cancer in the human body. We have PSA for prostate cancer; BRCA for breast cancer; CEA for colon cancer... and potentially in the very near future... a blood as well as spit test for head and neck cancer! Finally! Developed by researchers at Johns Hopkins, this new blood/spit test is able to detect squamous cell carcinoma with astounding accuracy using a combination of both DNA mutations and HPV markers. …